21358-93-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 21358-93-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,3,5 and 8 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 21358-93:
(7*2)+(6*1)+(5*3)+(4*5)+(3*8)+(2*9)+(1*3)=100
100 % 10 = 0
So 21358-93-0 is a valid CAS Registry Number.
21358-93-0Relevant articles and documents
The Solvolysis of 4β-Hydroxy-3β-p-tolylsulphonyloxyandrost-5-enes
Hanson, James R.,Wadsworth, Harry J.
, p. 933 - 937 (2007/10/02)
The solvolysis of 3β-p-tolylsulphonyloxyandrost-5-enes in acetic acid containing sodium acetate, is retarded by the presence of a 4β-acetoxy- or hydroxy-group.The products of solvolysis include the A-nor-3-formyl-steroids except in the presence of a 7-ketone.
